The War Game [1965]
"Technically and intellectually we are living in an atomic age, emotionally we are still living in the stone age."
This is a brilliant, Oscar winning BBC mockumentary about WW3 as it (would have) happened in 1965. Based on hard data from WW2 (Hiroshima, firestorm after Dresden bombing, etc.) expert interviews and actual emergency plans. In only 45 minutes it teaches why, how and how much we would all be screwed in case of a light nuclear attack. The whole thing is cold, precise and unemotional. The given arguments are as correct as cynical, and the consequences unavoidable.
A masterpiece. If you have the chance, don't miss it. A